DLT Low-Temperature Sludge Dryer - Focused on the USA

Our dryer development team, industry consultants, and industrial experts researched current dryers on the market and identified key areas in low-temperature dryers that would benefit from improvement. The result is a simplified, operator-friendly, low-temperature belt dryer that maximizes uptime – all done in a smaller footprint.

Centrisys DLT Low Temperature Belt Dryer

The DLT is a simple, closed-loop, hot water heating system. The low-profile design integrates modular heat exchangers into the dryer system. Depending on the plant, the DLT can be designed with a dedicated hot water boiler for natural gas or biogas. The waste heat from pyrolysis or CHP cooling water can be used to offset energy requirements.

Drivers for Low-Temperature Sludge Dryers

• Generate Class A Biosolids - dry sludge at a high temperature to destroy pathogens
• Reduce sludge volume
• Reduce costs for disposal, landfill, and transportation
• PFAS regulations, minimize risk by reducing volume

Product

• Dried sludge with a dryness level greater than 90% solids
• Reduced biosolids weight up to +80%
• Meets Class A requirements
• Optimized particle size creates minimal dust; allows for land application without further processing

More Uptime. Less Maintenance. Fewer Truckloads.

Problem: Typical low-temp dryer designs have heat recovery systems that are:

• Large
• Stand-alone
• A single point of failure
• Located outside the dryer system

During cleaning, the entire dryer must stop operation to complete this maintenance task.

Solution: In the DLT’s heat recovery system, each module has an individual set of heat exchangers. If a single HEX within the module requires cleaning, the DLT system continues to dry sludge. The dirty HEX can be isolated, removed and replaced with a spare. It's a simple, one-person swap of the cartridge.